Home / 491,463,700.70-678,215,425.75-268,445,346.62

Finding the Fourth Proportional to 491,463,700.70, 678,215,425.75 and 268,445,346.62

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Solution

The fourth proportional to 491,463,700.70, 678,215,425.75 and 268,445,346.62 is: 370,452,130.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,463,700.70 : 678,215,425.75 = 268,445,346.62 : x
  2. Step 2: Convert to fraction form
    491,463,700.70/678,215,425.75 = 268,445,346.62/x
  3. Step 3: Cross multiply
    491,463,700.70x = 678,215,425.75 × 268,445,346.62
  4. Step 4: Simplify right side
    491,463,700.70x = 182,063,775,044,427,424
  5. Step 5: Solve for x
    x = 182,063,775,044,427,424/491,463,700.70
  6. Step 6: Final answer
    x = 370,452,130.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.